Insole and outsole two-piece shoe

Abstract

An article of footwear includes an injection molded outsole of a first material having a durometer reading of at least 28 to at most 38 on the Asker C scale, an injection molded insole of a second material having a durometer reading of at least 28 to at most 38 on the Asker C scale, and an upper, at least a section of a peripheral edge of the upper being sandwiched between the insole and the outsole.

What is claimed is: 
     
       1. An article of footwear comprising:
 an injection molded outsole of a first material, constituting a single layer, having a durometer reading of at least 28 to at most 38 on the Asker C scale, 
 an injection molded insole of a second material, constituting a single layer, having a durometer reading of at least 28 to at most 38 on the Asker C scale, and 
 an upper, at least a section of a peripheral edge of the upper being sandwiched between the insole and the outsole, 
 wherein the first material and the second material are polymeric foams, and 
 wherein the article of footwear is devoid of a midsole between the outsole and the insole. 
 
     
     
       2. The article of footwear of  claim 1 , where a ratio T 1 :T 2  is at most 2:1 to at least 1:2, T 1  being a thickness of the insole and T 2  being a thickness of the outsole. 
     
     
       3. The article of footwear of  claim 1 , where an upper surface of the outsole is fastened to a lower surface of the insole. 
     
     
       4. The article of footwear of  claim 3 , where the upper surface of the outsole is fastened to the lower surface of the insole with an adhesive. 
     
     
       5. The article of footwear of  claim 1 , where a lower face of the outsole has a rocker shape. 
     
     
       6. The article of footwear of  claim 1  being devoid of a hard layer under the outsole. 
     
     
       7. The article of footwear of  claim 1  being devoid of a sock liner. 
     
     
       8. The article of footwear of  claim 1 , where the upper is of an elastomeric material. 
     
     
       9. An article of footwear consisting essentially of:
 an injection molded outsole of a first material, constituting a single layer, having a durometer reading of at least 28 to at most 38 on the Asker C scale, 
 an injection molded insole of a second material, constituting a single layer, having a durometer reading of at least 28 to at most 38 on the Asker C scale, and 
 an upper, at least a section of a peripheral edge of the upper being sandwiched between the insole and the outsole, 
 wherein the first material and the second material are polymeric foams, and 
 wherein the article of footwear is devoid of a midsole between the outsole and the insole. 
 
     
     
       10. The article of footwear of  claim 9 , where at least one of an upper surface of the outsole and a lower surface of the insole has a recess for receiving the peripheral edge of the upper. 
     
     
       11. An article of footwear comprising:
 an injection molded outsole of a material having a durometer reading of at least 28 to at most 38 on the Asker C scale, 
 an injection molded insole of the material, and 
 an upper, at least a section of a peripheral edge of the upper being sandwiched between the insole and the outsole, 
 wherein the material is a polymeric foam, and 
 wherein the article of footwear is devoid of a midsole between the outsole and the insole.